योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-5, verse-4

कृतायां तीर्थयात्रायां रामो निजगृहे स्थितः ।
जगामानुदिनं कार्श्यं शरदीवामलं सरः ॥ ४ ॥

kṛtāyāṃ tīrthayātrāyāṃ rāmo nijagṛhe sthitaḥ ,
jagāmānudinaṃ kārśyaṃ śaradīvāmalaṃ saraḥ 4

4. kṛtāyām tīrthayātrāyām rāmaḥ nijagṛhe sthitaḥ
jagāma anudinam kārśyam śaradi iva amalam saraḥ

4. After the pilgrimage (tīrthayātrā) was completed, Rama, while staying in his own house, daily grew lean, like a clear lake that diminishes in autumn.

Words meanings summery:

• कृतायाम् (kṛtāyām) - having been completed (having been done, completed, performed)

• तीर्थयात्रायाम् (tīrthayātrāyām) - when the pilgrimage (tīrthayātrā) was (completed) (in the pilgrimage, during the pilgrimage)

• रामः (rāmaḥ) - Rama

• निजगृहे (nijagṛhe) - in his own house

• स्थितः (sthitaḥ) - staying (standing, situated, staying)

• जगाम (jagāma) - grew, attained (a state of) (went, moved, attained)

• अनुदिनम् (anudinam) - daily (daily, day by day)

• कार्श्यम् (kārśyam) - emaciation, decline (leanness, emaciation, thinness, decline)

• शरदि (śaradi) - in autumn

• इव (iva) - like (like, as if, as)

• अमलम् (amalam) - clear (clear, pure, spotless)

• सरः (saraḥ) - lake (lake, pond)

Words meanings and morphology

कृतायाम् (kṛtāyām) - having been completed (having been done, completed, performed)

(adjective)

Locative, feminine, singular of kṛtā

kṛta - done, made, performed

Past Passive Participle

From root kṛ (to do, make), feminine form

Root: kṛ (class 8)

Note: Qualifies tīrthayātrāyām in a locative absolute construction.

तीर्थयात्रायाम् (tīrthayātrāyām) - when the pilgrimage (tīrthayātrā) was (completed) (in the pilgrimage, during the pilgrimage)

(noun)

Locative, feminine, singular of tīrthayātrā

tīrthayātrā - pilgrimage, journey to a sacred place

Tatpurusha compound: tīrtha (sacred ford/place) + yātrā (journey).

Compound type : tatpurusha (tīrtha+yātrā)

• tīrtha – sacred bathing place, ford, holy place
  noun (neuter)
• yātrā – journey, procession, pilgrimage
  noun (feminine)
  From root yā (to go)
  Root: yā (class 2)

रामः (rāmaḥ) - Rama

(proper noun)

Nominative, masculine, singular of rāma

rāma - Rama (name of the hero of Ramayana)

निजगृहे (nijagṛhe) - in his own house

(noun)

Locative, neuter, singular of nijagṛha

nijagṛha - own house, private residence

Tatpurusha compound (or karmadhāraya): nija (own) + gṛha (house).

Compound type : tatpurusha (nija+gṛha)

• nija – own, proper, inherent
  adjective (masculine)
• gṛha – house, home
  noun (neuter)

Note: Place where Rama was staying.

स्थितः (sthitaḥ) - staying (standing, situated, staying)

(adjective)

Nominative, masculine, singular of sthita

sthita - standing, situated, abiding, staying

Past Passive Participle

From root sthā (to stand, stay)

Root: sthā (class 1)

Note: Forms an adjectival phrase with rāmaḥ.

जगाम (jagāma) - grew, attained (a state of) (went, moved, attained)

(verb)

3rd person , singular, active, perfect (lit) of gam

Perfect active 3rd singular

Reduplicated past tense.

Root: gam (class 1)

Note: Refers to Rama's deteriorating condition.

अनुदिनम् (anudinam) - daily (daily, day by day)

(indeclinable)

Avyayībhāva compound: anu (after, repeatedly) + dina (day).

कार्श्यम् (kārśyam) - emaciation, decline (leanness, emaciation, thinness, decline)

(noun)

Accusative, neuter, singular of kārśya

kārśya - leanness, thinness, emaciation, decay, decline

Derived from kṛśa (lean, thin) + ya suffix.

Root: kṛś (class 1)

Note: Object of jagāma.

शरदि (śaradi) - in autumn

(noun)

Locative, feminine, singular of śarad

śarad - autumn, a year

इव (iva) - like (like, as if, as)

(indeclinable)

Particle of comparison

अमलम् (amalam) - clear (clear, pure, spotless)

(adjective)

Nominative, neuter, singular of amala

amala - spotless, pure, clean, clear

Negative compound a + mala (dirt).

Compound type : nañ-tatpurusha (a+mala)

• a – not, un-
  indeclinable
  Negative prefix
• mala – dirt, impurity, stain
  noun (masculine)

Note: Here, nominative singular neuter, agreeing with saraḥ.

सरः (saraḥ) - lake (lake, pond)

(noun)

Nominative, neuter, singular of saras

saras - lake, pond, pool

Root: sṛ (class 1)

Note: This is the noun being compared to Rama. It is in the nominative, serving as the subject of the implied shrinking action.